Home / 9,309.69-12,858.34-6,160.41

Finding the Fourth Proportional to 9,309.69, 12,858.34 and 6,160.41

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Solution

The fourth proportional to 9,309.69, 12,858.34 and 6,160.41 is: 8,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.69 : 12,858.34 = 6,160.41 : x
  2. Step 2: Convert to fraction form
    9,309.69/12,858.34 = 6,160.41/x
  3. Step 3: Cross multiply
    9,309.69x = 12,858.34 × 6,160.41
  4. Step 4: Simplify right side
    9,309.69x = 79,212,646.32
  5. Step 5: Solve for x
    x = 79,212,646.32/9,309.69
  6. Step 6: Final answer
    x = 8,508.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.